10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
I wrote this small bash script, i want to compare second column from file1 with file2 if a pattern matches. Files are small and I am sure that pattern occurs only once. I think this can be rewritten into a awk one liner. Appreciate if someone could give me idea. Whole NR FNR confuse me :o
... (6 Replies)
Discussion started by: ctrld
2. Shell Programming and Scripting
I wrote a code to find codons in a DNA string. The only problem I have is how do I make the code only work for a file with DNA. This means the file only has the characters a,c,g,t and no white space characters. (3 Replies)
Discussion started by: germany1517
3. Shell Programming and Scripting
I need to perform the untar and rm operation if the file found is a .tar and does not have test.tar or hello.tar as the file names.
Below is the loop to check the same.
for tf in *.tar
do if ]
... (1 Reply)
Discussion started by: mohtashims
4. Shell Programming and Scripting
issue is with .txt files (7 Replies)
Discussion started by: anil529
5. Shell Programming and Scripting
In the below I can not seem to add a line that will add Not low if the statement in bold is not true or meet. I guess when the first if statement is true/meet then print low, otherwise print Not low in $(NF + 1). I am not sure how to correctly add this. Thank you :).
if(low <= $2 && $2 <=... (5 Replies)
Discussion started by: cmccabe
6. UNIX for Dummies Questions & Answers
I want to check (using bash condition test function) if string contains three spaces, ignoring last three spaces at the end of string.
string_to_report='foo bar foo bar '
string_to_ignore='foo bar ' (8 Replies)
Discussion started by: useretail
7. Red Hat
Urgent help with bash scripting
1- i am using grep to find a string called: tinker panic 0 in a file /etc/ntp.conf
if the string is not there, i want to add the strings in /etc/ntp.conf file in the first line of the file. if not do nothing or exit.
2- also i want to add # in front of the... (2 Replies)
Discussion started by: lamoul
Hi, I have meaning to include an if condition statement in my code to check the directory for existing output files and if its existing i want the program to delete it before doing the succeeding command. i just dont know the correct syntax for it. thanks much guys, this forum has indeed been very... (4 Replies)
Discussion started by: ida1215
9. Shell Programming and Scripting
I am trying to check if two variables have value assigned to it.
i am doing it like
echo "Please specify either single hostname or host file for the report"
But its not working for it.Even i specify values for both variables it dont go... (6 Replies)
Discussion started by: kailash19
10. Shell Programming and Scripting
How can I use a variable that has the conditions for the if statement stored in it?
my test script
condition=" || || "
then echo "true"
else echo "false"
./test2.sh: line 3: || || : command not found
false (2 Replies)
Discussion started by: curlee2002